Can a pregnancy blood test give a false negative?

[manda03]

I have just recently switched birth control pills (about 2months ago)and last month I had my regular period.  I have not missed a period yet, but for almost three weeks I have been nausea off and on all day long with indegestion and have been extemely tired.  I have taken three home pregnancy test and one out of the three was positive.  That was last Wed. night, Thurs. I went to the doctor and he did a blood test that came back negative.  The thing is I have never reacted to BCP this way before.  Could I be pregnant and getting a false negative from the doctor?  If anyone has any advice or suggestion I would sure apprecitate it.

Thank you!

[Angela166]

I went thru the same thing, then within a couple days AF showed up. I was definately bummed out.

[Eng03]

ok..i have a question for you..i started the DEPO shot on the 3rd..they told me to wait 2 weeks to have unprotected sex,but i didnt lol...i took a home test and it came up blank, i had my blood drawn and it came back negative..about a week later i took a home test(last night),,it came back positive,,i went to the doctor today and it came back negative...maybe im not far enough along..its only been 4 days since we had unprotected sex last..HELP!!!!

[mleigh92]

Hello To whom it May Concern,

   I have recently Begun to have every "pregnancy" Symptom except heart burn since Two weeks ago today. Frequent Urination, Apatite every 45 minutes Or nausea to come about...LMP was 09.01.11 Although I was on Seasonique which accordingly every 3 month a cycle to Occur. According to my calculations I should have had a cycle in the middle of December 2011, Haven't seen even spotting. I stopped taking pills in the middle of December to have a cycle for few days then resume, but just stop taking them all together since in anticipating a cycle. I have in the last two weeks taken 3 at home test as well as a urine and blood test on 01.30.12. They have all been negative, the last urine at home test was yesterday 02.07.12 I plan to take another blood test 02.08.12 To see if HCG levels have increased since last wk when was advised to wait a few days and take another at home as well as return in week for blood by midwife. They detected low levels in last test, and I have only been taking vitamin D and B complex with c in it for the last few months, nothing that I'm aware would have HCG amongst it. I think I felt movement the other day and with all pertaining symptoms I know I am. I feel It. Reassurance from Professionals?

[Ashmommie008]

Honestly, I think blood tests can be wrong...  i Had a blood test at the hospital it came back neg. I was already two weeks late and had all the preg. symptoms so I knew it was wrong. Two days later, I took a home preg. test and came back postive, went to the dr. and I was preg. But i miscarried Oct. 28 at 14 weeks

[swtaznbabiexx]

I stop taking  my birth control, spotted and light bleeding for week, 2 weeks later I get one day of heavy bleeding. 2 month goes by no period, no spotting. negative hpt test and 3 neg. blood test!  Iduno if there chance I could be pregnant or probably not

[evilsugar]

I was due for my last depo shot dec.30 2011  the last few days ive been having a few pregnancy symptoms, the home test came back negative but can i still be prego?