Really very sorry to learn about your loss. Do not be anxious to concieve as that anxiety
itself can delay your conception. Ability to concieve depends upon whether your periods are regular & if your cycles are ovulatory. Since you say that your periods are painful, they should be ovulatory cycles. It is too early to confirm if you are pregnant with urine test as it is usually posiitive only around 2 weeks after the missed period. But the pregnancy blood test
(Radio immuno assay) can confirm the suspected pregnancy even before the missed period by estimating the level of human chorionic gonadotropin
hormone. It is a very costly test. Nausea, tenderness of breasts indicates progesterone
action during premenstural period as well as during luteal phase, which occurs after conception. Anyway we will hope for the best. Good Luck.