What is actually causing the pain?

[Praggu]

I had my period on 13th May and i had protected sex (condoms) with my bf on 29th and to be safe i had a contraceptive pill which is asked to be taken within 72 hours on 31st. I had been taking this pill once in month since march.In June i expected my periods on 10th but it came on 12th and it was light bleeding than usual but the discharge was red and some cloted blood. After my periods i feel pain in my legs and sometime little pain the back.. I neither have a sore breast, nor feeling tired or nausea. I haven't taken pregnancy test as i am not feeling any sypmtoms. Could this pain be because of contraceptive pills?

[pplleeaasseehheellpp]

If you're speaking of emergency contraceptives like plan b, then yes!!! Those pills are only for emergencies. They will mess everything up if taken as birth control methods

[Praggu]

Yes I took plan b and I am taking it once every month from last 3 months. I think that's causing leg pain.