I had sex with guy a in April once early in April around the 7-10th and another time on April 21. I had a iud in then. I had my iud taken out on April 27. I think I had a withdrawal bleed on April 29 that lasted for only two days. Then in May on the 5 I started bleeding again but only for a few days. I was the with guy b April 23 and on. I took a pregnancy test on May 12 which was negative. Another one on 16 negative. I took one on May 28 and it was positive. On June 1 I went to Er for pain my HCG was 1400 and only fluid was seen on the ultrasound I made a appt with my ob on the 8 and has another ultrasound he could only find a gestational sac and a yolk. I had a repeat one week later on the 15 and there was a fetal pole that measured 5 weeks and 6 daus. Does it sound like I should get a dna test?