how soon after a miscarriage can a woman become pregnant?

i had a miscarriage around march 23rd ending around the 1st of april. my husband and i have had sex after i had finally stopped bleeding. he c*me in me about 3 times about 3 weeks ago and then we wore protection for a while then around last week we stopped using protection. my period is suppose to start either thw second to last week until the months is over or the last week of the month. i have a few days left, planning on testing on the 1st. im trying not to get my hopes up by telling myself the miscarriage could have made my period pushed till later on or something. but ive read stories about getting pregnant right after a miscarriage. my boobs have started to feel slightly sore and that happened with my first pregnancy (my boobs dont hurt when im about to start my period) and ive been having diariah (sorry, tmi) for about a week. i know its most likely to early to have any symptoms but you know when your body is being different. let me know what you think