how soon after a miscarriage can you become pregnant?

i have a feeling im pregnant again. on March 23rd ending around April 4th, i was bleeding due to a miscarriage. first time i started bleeding it only last about 4-5 days and then after like 3 or 4 days, i started bleeding again and it lasted about the same time the first time i was bleeding. i had my first appointment on the 17th of april to make sure my hcg levels went down and they in fact did. a day after my appointment, me and my husband made love multiple times with no protection and no pulling out. we did that for a few days then he had to wear a condom cause he had a cut on his penis. after it healed went back at it. for about 3 days now my boobs have been really sore and thats how i knew i was pregnant the first time. i took a test yestersay and i came back negative. the first time i was pregnant, my boobs were hurting for 3 weeks before i even got a slight positive. everyone told me that it was to early to have any symptoms but i just knew. my boobs never hurt when im suppose to get my period either. i also never got my period for april. i plan to test again next week. what are your thoughts?