Sir/madam My gf had got periods on 9feb.on 17 feb we had done Intercourse. Which is unprotected but during ejaculation i have withdrawn my pennis out.on 9th March we took a urine test but the preganacy was negative.due to her 26 days cycle and periods did not came I gave her homeopathy medicine for periods to come. On 20th March she got her periods which was heavy bleeding.on 24th March we have again took a urine pregnancy test which turned out to be negative again. Periods got over.now from 28th March she is getting pain on her hip area which is going towards her legs.what could be the issue.please reply me